Worked on the zenml-io/zenml repository to enhance reliability for Docker-based SkyPilot orchestrators by addressing environment variable propagation issues across sudo boundaries. Leveraged Python and Linux skills to implement the --preserve-env flag, ensuring necessary variables are passed securely without exposing secrets in command lines. Added integration tests to validate end-to-end environment propagation, preventing regressions and runtime errors such as improper fallback to local SQLite or missing dependencies like sqlalchemy_utils. Scoped changes specifically to Docker pathways within SkyPilot, leaving Kubernetes workflows unaffected. Focused on improving operational reliability and security posture while maintaining robust testing practices throughout the development process.